FROM python:3.11-slim

WORKDIR /app
COPY . .

RUN pip install --no-cache-dir -U pip \
 && pip install --no-cache-dir -r requirements.txt

# HF Spaces expects the app on port 7860 (best practice)
EXPOSE 7860

CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0", "--server.headless=true"]